зеркало из https://github.com/mozilla/pjs.git
1614 строки
49 KiB
C++
1614 строки
49 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Blake Ross <blakeross@telocity.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsCOMPtr.h"
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#include "nsTextControlFrame.h"
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#include "nsIDocument.h"
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#include "nsIFormControl.h"
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#include "nsIServiceManager.h"
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#include "nsFrameSelection.h"
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#include "nsIPlaintextEditor.h"
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#include "nsEditorCID.h"
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#include "nsLayoutCID.h"
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#include "nsIDocumentEncoder.h"
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#include "nsCaret.h"
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#include "nsISelectionListener.h"
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#include "nsISelectionPrivate.h"
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#include "nsIController.h"
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#include "nsIControllers.h"
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#include "nsIControllerContext.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIEditorIMESupport.h"
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#include "nsIPhonetic.h"
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#include "nsIEditorObserver.h"
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#include "nsEditProperty.h"
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#include "nsIDOMHTMLTextAreaElement.h"
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#include "nsINameSpaceManager.h"
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#include "nsINodeInfo.h"
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#include "nsFormControlFrame.h" //for registering accesskeys
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#include "nsIContent.h"
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#include "nsIAtom.h"
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#include "nsPresContext.h"
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#include "nsRenderingContext.h"
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#include "nsGkAtoms.h"
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#include "nsLayoutUtils.h"
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#include "nsIComponentManager.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMDocument.h"
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#include "nsIPresShell.h"
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#include "nsIComponentManager.h"
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#include "nsBoxLayoutState.h"
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//for keylistener for "return" check
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#include "nsIPrivateDOMEvent.h"
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#include "nsIDOMEventTarget.h"
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#include "nsIDocument.h" //observe documents to send onchangenotifications
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#include "nsIStyleSheet.h"//observe documents to send onchangenotifications
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#include "nsIStyleRule.h"//observe documents to send onchangenotifications
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#include "nsIDOMEventListener.h"//observe documents to send onchangenotifications
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#include "nsGUIEvent.h"
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#include "nsIDOMNSEvent.h"
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#include "nsIDOMNSUIEvent.h"
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#include "nsIDOMCharacterData.h" //for selection setting helper func
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#include "nsIDOMNodeList.h" //for selection setting helper func
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#include "nsIDOMRange.h" //for selection setting helper func
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#include "nsPIDOMWindow.h" //needed for notify selection changed to update the menus ect.
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#ifdef ACCESSIBILITY
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#include "nsAccessibilityService.h"
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#endif
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#include "nsIServiceManager.h"
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#include "nsIDOMNode.h"
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#include "nsIEditorObserver.h"
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#include "nsITransactionManager.h"
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#include "nsIDOMText.h" //for multiline getselection
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#include "nsNodeInfoManager.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsINativeKeyBindings.h"
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#include "nsIJSContextStack.h"
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#include "nsFocusManager.h"
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#include "nsTextEditRules.h"
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#include "nsIDOMNSHTMLElement.h"
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#include "nsPresState.h"
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#include "mozilla/FunctionTimer.h"
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#define DEFAULT_COLUMN_WIDTH 20
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#include "nsContentCID.h"
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static NS_DEFINE_IID(kRangeCID, NS_RANGE_CID);
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nsIFrame*
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NS_NewTextControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsTextControlFrame(aPresShell, aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsTextControlFrame)
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NS_QUERYFRAME_HEAD(nsTextControlFrame)
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NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
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NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
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NS_QUERYFRAME_ENTRY(nsITextControlFrame)
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NS_QUERYFRAME_ENTRY(nsIStatefulFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
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#ifdef ACCESSIBILITY
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already_AddRefed<nsAccessible>
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nsTextControlFrame::CreateAccessible()
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{
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nsAccessibilityService* accService = nsIPresShell::AccService();
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if (accService) {
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return accService->CreateHTMLTextFieldAccessible(mContent,
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PresContext()->PresShell());
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}
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return nsnull;
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}
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#endif
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#ifdef DEBUG
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class EditorInitializerEntryTracker {
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public:
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explicit EditorInitializerEntryTracker(nsTextControlFrame &frame)
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: mFrame(frame)
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, mFirstEntry(PR_FALSE)
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{
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if (!mFrame.mInEditorInitialization) {
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mFrame.mInEditorInitialization = PR_TRUE;
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mFirstEntry = PR_TRUE;
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}
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}
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~EditorInitializerEntryTracker()
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{
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if (mFirstEntry) {
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mFrame.mInEditorInitialization = PR_FALSE;
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}
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}
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PRBool EnteredMoreThanOnce() const { return !mFirstEntry; }
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private:
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nsTextControlFrame &mFrame;
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PRBool mFirstEntry;
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};
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#endif
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nsTextControlFrame::nsTextControlFrame(nsIPresShell* aShell, nsStyleContext* aContext)
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: nsStackFrame(aShell, aContext)
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, mUseEditor(PR_FALSE)
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, mIsProcessing(PR_FALSE)
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, mNotifyOnInput(PR_TRUE)
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, mFireChangeEventState(PR_FALSE)
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#ifdef DEBUG
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, mInEditorInitialization(PR_FALSE)
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#endif
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{
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}
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nsTextControlFrame::~nsTextControlFrame()
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{
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}
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void
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nsTextControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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mScrollEvent.Revoke();
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EditorInitializer* initializer = (EditorInitializer*) Properties().Get(TextControlInitializer());
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if (initializer) {
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initializer->Revoke();
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Properties().Delete(TextControlInitializer());
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}
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// Unbind the text editor state object from the frame. The editor will live
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// on, but things like controllers will be released.
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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txtCtrl->UnbindFromFrame(this);
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nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), PR_FALSE);
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nsBoxFrame::DestroyFrom(aDestructRoot);
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}
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nsIAtom*
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nsTextControlFrame::GetType() const
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{
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return nsGkAtoms::textInputFrame;
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}
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nsresult
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nsTextControlFrame::CalcIntrinsicSize(nsRenderingContext* aRenderingContext,
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nsSize& aIntrinsicSize)
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{
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// Get leading and the Average/MaxAdvance char width
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nscoord lineHeight = 0;
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nscoord charWidth = 0;
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nscoord charMaxAdvance = 0;
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nsRefPtr<nsFontMetrics> fontMet;
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nsresult rv =
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nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet));
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NS_ENSURE_SUCCESS(rv, rv);
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aRenderingContext->SetFont(fontMet);
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lineHeight =
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nsHTMLReflowState::CalcLineHeight(GetStyleContext(), NS_AUTOHEIGHT);
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charWidth = fontMet->AveCharWidth();
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charMaxAdvance = fontMet->MaxAdvance();
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// Set the width equal to the width in characters
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PRInt32 cols = GetCols();
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aIntrinsicSize.width = cols * charWidth;
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// To better match IE, take the maximum character width(in twips) and remove
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// 4 pixels add this on as additional padding(internalPadding). But only do
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// this if charMaxAdvance != charWidth; if they are equal, this is almost
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// certainly a fixed-width font.
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if (charWidth != charMaxAdvance) {
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nscoord internalPadding = NS_MAX(0, charMaxAdvance -
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nsPresContext::CSSPixelsToAppUnits(4));
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nscoord t = nsPresContext::CSSPixelsToAppUnits(1);
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// Round to a multiple of t
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nscoord rest = internalPadding % t;
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if (rest < t - rest) {
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internalPadding -= rest;
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} else {
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internalPadding += t - rest;
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}
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// Now add the extra padding on (so that small input sizes work well)
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aIntrinsicSize.width += internalPadding;
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} else {
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// This is to account for the anonymous <br> having a 1 twip width
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// in Full Standards mode, see BRFrame::Reflow and bug 228752.
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if (PresContext()->CompatibilityMode() == eCompatibility_FullStandards) {
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aIntrinsicSize.width += 1;
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}
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// Also add in the padding of our value div child. Note that it hasn't
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// been reflowed yet, so we can't get its used padding, but it shouldn't be
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// using percentage padding anyway.
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nsMargin childPadding;
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nsIFrame* firstChild = GetFirstChild(nsnull);
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if (firstChild && firstChild->GetStylePadding()->GetPadding(childPadding)) {
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aIntrinsicSize.width += childPadding.LeftRight();
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} else {
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NS_ERROR("Percentage padding on value div?");
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}
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}
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// Increment width with cols * letter-spacing.
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{
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const nsStyleCoord& lsCoord = GetStyleText()->mLetterSpacing;
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if (eStyleUnit_Coord == lsCoord.GetUnit()) {
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nscoord letterSpacing = lsCoord.GetCoordValue();
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if (letterSpacing != 0) {
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aIntrinsicSize.width += cols * letterSpacing;
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}
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}
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}
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// Set the height equal to total number of rows (times the height of each
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// line, of course)
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aIntrinsicSize.height = lineHeight * GetRows();
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// Add in the size of the scrollbars for textarea
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if (IsTextArea()) {
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nsIFrame* first = GetFirstChild(nsnull);
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nsIScrollableFrame *scrollableFrame = do_QueryFrame(first);
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NS_ASSERTION(scrollableFrame, "Child must be scrollable");
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if (scrollableFrame) {
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nsMargin scrollbarSizes =
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scrollableFrame->GetDesiredScrollbarSizes(PresContext(), aRenderingContext);
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aIntrinsicSize.width += scrollbarSizes.LeftRight();
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aIntrinsicSize.height += scrollbarSizes.TopBottom();;
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}
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}
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return NS_OK;
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}
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nsresult
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nsTextControlFrame::EnsureEditorInitialized()
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{
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// This method initializes our editor, if needed.
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// This code used to be called from CreateAnonymousContent(), but
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// when the editor set the initial string, it would trigger a
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// PresShell listener which called FlushPendingNotifications()
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// during frame construction. This was causing other form controls
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// to display wrong values. Additionally, calling this every time
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// a text frame control is instantiated means that we're effectively
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// instantiating the editor for all text fields, even if they
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// never get used. So, now this method is being called lazily only
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// when we actually need an editor.
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// Check if this method has been called already.
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// If so, just return early.
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if (mUseEditor)
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return NS_OK;
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NS_TIME_FUNCTION;
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nsIDocument* doc = mContent->GetCurrentDoc();
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NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
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nsWeakFrame weakFrame(this);
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// Flush out content on our document. Have to do this, because script
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// blockers don't prevent the sink flushing out content and notifying in the
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// process, which can destroy frames.
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doc->FlushPendingNotifications(Flush_ContentAndNotify);
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NS_ENSURE_TRUE(weakFrame.IsAlive(), NS_ERROR_FAILURE);
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// Make sure that editor init doesn't do things that would kill us off
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// (especially off the script blockers it'll create for its DOM mutations).
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nsAutoScriptBlocker scriptBlocker;
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// Time to mess with our security context... See comments in GetValue()
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// for why this is needed.
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nsCxPusher pusher;
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pusher.PushNull();
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// Make sure that we try to focus the content even if the method fails
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class EnsureSetFocus {
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public:
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explicit EnsureSetFocus(nsTextControlFrame* aFrame)
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: mFrame(aFrame) {}
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~EnsureSetFocus() {
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if (nsContentUtils::IsFocusedContent(mFrame->GetContent()))
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mFrame->SetFocus(PR_TRUE, PR_FALSE);
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}
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private:
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nsTextControlFrame *mFrame;
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};
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EnsureSetFocus makeSureSetFocusHappens(this);
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#ifdef DEBUG
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// Make sure we are not being called again until we're finished.
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// If reentrancy happens, just pretend that we don't have an editor.
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const EditorInitializerEntryTracker tracker(*this);
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NS_ASSERTION(!tracker.EnteredMoreThanOnce(),
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"EnsureEditorInitialized has been called while a previous call was in progress");
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#endif
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// Create an editor for the frame, if one doesn't already exist
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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nsresult rv = txtCtrl->CreateEditor();
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NS_ENSURE_SUCCESS(rv, rv);
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// Turn on mUseEditor so that subsequent calls will use the
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// editor.
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mUseEditor = PR_TRUE;
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// Set the selection to the beginning of the text field.
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SetSelectionEndPoints(0, 0);
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return NS_OK;
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}
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nsresult
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nsTextControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
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{
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NS_ASSERTION(mContent, "We should have a content!");
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mState |= NS_FRAME_INDEPENDENT_SELECTION;
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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// Bind the frame to its text control
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nsresult rv = txtCtrl->BindToFrame(this);
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NS_ENSURE_SUCCESS(rv, rv);
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nsIContent* rootNode = txtCtrl->GetRootEditorNode();
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NS_ENSURE_TRUE(rootNode, NS_ERROR_OUT_OF_MEMORY);
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if (!aElements.AppendElement(rootNode))
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return NS_ERROR_OUT_OF_MEMORY;
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// Do we need a placeholder node?
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nsAutoString placeholderTxt;
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mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::placeholder,
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placeholderTxt);
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nsContentUtils::RemoveNewlines(placeholderTxt);
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mUsePlaceholder = !placeholderTxt.IsEmpty();
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// Create the placeholder anonymous content if needed.
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if (mUsePlaceholder) {
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nsIContent* placeholderNode = txtCtrl->CreatePlaceholderNode();
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NS_ENSURE_TRUE(placeholderNode, NS_ERROR_OUT_OF_MEMORY);
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if (!aElements.AppendElement(placeholderNode))
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return NS_ERROR_OUT_OF_MEMORY;
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}
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rv = UpdateValueDisplay(PR_FALSE);
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NS_ENSURE_SUCCESS(rv, rv);
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// textareas are eagerly initialized
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PRBool initEagerly = !IsSingleLineTextControl();
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if (!initEagerly) {
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// Also, input elements which have a cached selection should get eager
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// editor initialization.
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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initEagerly = txtCtrl->HasCachedSelection();
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}
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if (!initEagerly) {
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nsCOMPtr<nsIDOMNSHTMLElement> element = do_QueryInterface(txtCtrl);
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if (element) {
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// so are input text controls with spellcheck=true
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element->GetSpellcheck(&initEagerly);
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}
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}
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if (initEagerly) {
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NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),
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"Someone forgot a script blocker?");
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EditorInitializer* initializer = (EditorInitializer*) Properties().Get(TextControlInitializer());
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if (initializer) {
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initializer->Revoke();
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}
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initializer = new EditorInitializer(this);
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Properties().Set(TextControlInitializer(),initializer);
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if (!nsContentUtils::AddScriptRunner(initializer)) {
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initializer->Revoke(); // paranoia
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Properties().Delete(TextControlInitializer());
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delete initializer;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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}
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return NS_OK;
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}
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void
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nsTextControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
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PRUint32 aFilter)
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{
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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aElements.MaybeAppendElement(txtCtrl->GetRootEditorNode());
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if (!(aFilter & nsIContent::eSkipPlaceholderContent))
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aElements.MaybeAppendElement(txtCtrl->GetPlaceholderNode());
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}
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nscoord
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nsTextControlFrame::GetMinWidth(nsRenderingContext* aRenderingContext)
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{
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// Our min width is just our preferred width if we have auto width.
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nscoord result;
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DISPLAY_MIN_WIDTH(this, result);
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result = GetPrefWidth(aRenderingContext);
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return result;
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}
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|
nsSize
|
|
nsTextControlFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
|
|
nsSize aCBSize, nscoord aAvailableWidth,
|
|
nsSize aMargin, nsSize aBorder,
|
|
nsSize aPadding, PRBool aShrinkWrap)
|
|
{
|
|
nsSize autoSize;
|
|
nsresult rv = CalcIntrinsicSize(aRenderingContext, autoSize);
|
|
if (NS_FAILED(rv)) {
|
|
// What now?
|
|
autoSize.SizeTo(0, 0);
|
|
}
|
|
#ifdef DEBUG
|
|
// Note: Ancestor ComputeAutoSize only computes a width if we're auto-width
|
|
else if (GetStylePosition()->mWidth.GetUnit() == eStyleUnit_Auto) {
|
|
nsSize ancestorAutoSize =
|
|
nsStackFrame::ComputeAutoSize(aRenderingContext,
|
|
aCBSize, aAvailableWidth,
|
|
aMargin, aBorder,
|
|
aPadding, aShrinkWrap);
|
|
NS_ASSERTION(ancestorAutoSize.width == autoSize.width,
|
|
"Incorrect size computed by ComputeAutoSize?");
|
|
}
|
|
#endif
|
|
|
|
return autoSize;
|
|
}
|
|
|
|
|
|
// We inherit our GetPrefWidth from nsBoxFrame
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
DO_GLOBAL_REFLOW_COUNT("nsTextControlFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
|
|
// make sure the the form registers itself on the initial/first reflow
|
|
if (mState & NS_FRAME_FIRST_REFLOW) {
|
|
nsFormControlFrame::RegUnRegAccessKey(this, PR_TRUE);
|
|
}
|
|
|
|
return nsStackFrame::Reflow(aPresContext, aDesiredSize, aReflowState,
|
|
aStatus);
|
|
}
|
|
|
|
nsSize
|
|
nsTextControlFrame::GetPrefSize(nsBoxLayoutState& aState)
|
|
{
|
|
if (!DoesNeedRecalc(mPrefSize))
|
|
return mPrefSize;
|
|
|
|
#ifdef DEBUG_LAYOUT
|
|
PropagateDebug(aState);
|
|
#endif
|
|
|
|
nsSize pref(0,0);
|
|
|
|
nsresult rv = CalcIntrinsicSize(aState.GetRenderingContext(), pref);
|
|
NS_ENSURE_SUCCESS(rv, pref);
|
|
AddBorderAndPadding(pref);
|
|
|
|
PRBool widthSet, heightSet;
|
|
nsIBox::AddCSSPrefSize(this, pref, widthSet, heightSet);
|
|
|
|
nsSize minSize = GetMinSize(aState);
|
|
nsSize maxSize = GetMaxSize(aState);
|
|
mPrefSize = BoundsCheck(minSize, pref, maxSize);
|
|
|
|
#ifdef DEBUG_rods
|
|
{
|
|
nsMargin borderPadding(0,0,0,0);
|
|
GetBorderAndPadding(borderPadding);
|
|
nsSize size(169, 24);
|
|
nsSize actual(pref.width/15,
|
|
pref.height/15);
|
|
printf("nsGfxText(field) %d,%d %d,%d %d,%d\n",
|
|
size.width, size.height, actual.width, actual.height, actual.width-size.width, actual.height-size.height); // text field
|
|
}
|
|
#endif
|
|
|
|
return mPrefSize;
|
|
}
|
|
|
|
nsSize
|
|
nsTextControlFrame::GetMinSize(nsBoxLayoutState& aState)
|
|
{
|
|
// XXXbz why? Why not the nsBoxFrame sizes?
|
|
return nsBox::GetMinSize(aState);
|
|
}
|
|
|
|
nsSize
|
|
nsTextControlFrame::GetMaxSize(nsBoxLayoutState& aState)
|
|
{
|
|
// XXXbz why? Why not the nsBoxFrame sizes?
|
|
return nsBox::GetMaxSize(aState);
|
|
}
|
|
|
|
nscoord
|
|
nsTextControlFrame::GetBoxAscent(nsBoxLayoutState& aState)
|
|
{
|
|
// Return the baseline of the first (nominal) row, with centering for
|
|
// single-line controls.
|
|
|
|
// First calculate the ascent wrt the client rect
|
|
nsRect clientRect;
|
|
GetClientRect(clientRect);
|
|
nscoord lineHeight =
|
|
IsSingleLineTextControl() ? clientRect.height :
|
|
nsHTMLReflowState::CalcLineHeight(GetStyleContext(), NS_AUTOHEIGHT);
|
|
|
|
nsRefPtr<nsFontMetrics> fontMet;
|
|
nsresult rv =
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet));
|
|
NS_ENSURE_SUCCESS(rv, 0);
|
|
|
|
nscoord ascent = nsLayoutUtils::GetCenteredFontBaseline(fontMet, lineHeight);
|
|
|
|
// Now adjust for our borders and padding
|
|
ascent += clientRect.y;
|
|
|
|
return ascent;
|
|
}
|
|
|
|
PRBool
|
|
nsTextControlFrame::IsCollapsed(nsBoxLayoutState& aBoxLayoutState)
|
|
{
|
|
// We're never collapsed in the box sense.
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool
|
|
nsTextControlFrame::IsLeaf() const
|
|
{
|
|
return PR_TRUE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::ScrollOnFocusEvent::Run()
|
|
{
|
|
if (mFrame) {
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(mFrame->GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
if (selCon) {
|
|
mFrame->mScrollEvent.Forget();
|
|
selCon->ScrollSelectionIntoView(nsISelectionController::SELECTION_NORMAL,
|
|
nsISelectionController::SELECTION_FOCUS_REGION,
|
|
nsISelectionController::SCROLL_SYNCHRONOUS);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
//IMPLEMENTING NS_IFORMCONTROLFRAME
|
|
void nsTextControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
// Revoke the previous scroll event if one exists
|
|
mScrollEvent.Revoke();
|
|
|
|
if (!aOn) {
|
|
if (mUsePlaceholder) {
|
|
PRInt32 textLength;
|
|
GetTextLength(&textLength);
|
|
|
|
if (!textLength) {
|
|
nsWeakFrame weakFrame(this);
|
|
|
|
txtCtrl->SetPlaceholderClass(PR_TRUE, PR_TRUE);
|
|
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
if (!selCon)
|
|
return;
|
|
|
|
if (mUsePlaceholder) {
|
|
nsWeakFrame weakFrame(this);
|
|
|
|
txtCtrl->SetPlaceholderClass(PR_FALSE, PR_TRUE);
|
|
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
InitFocusedValue();
|
|
|
|
nsCOMPtr<nsISelection> ourSel;
|
|
selCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
|
|
getter_AddRefs(ourSel));
|
|
if (!ourSel) return;
|
|
|
|
nsIPresShell* presShell = PresContext()->GetPresShell();
|
|
nsRefPtr<nsCaret> caret = presShell->GetCaret();
|
|
if (!caret) return;
|
|
|
|
// Scroll the current selection into view
|
|
nsISelection *caretSelection = caret->GetCaretDOMSelection();
|
|
const PRBool isFocusedRightNow = ourSel == caretSelection;
|
|
if (!isFocusedRightNow) {
|
|
// Don't scroll the current selection if we've been focused using the mouse.
|
|
PRUint32 lastFocusMethod = 0;
|
|
nsIDocument* doc = GetContent()->GetCurrentDoc();
|
|
if (doc) {
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
if (fm) {
|
|
fm->GetLastFocusMethod(doc->GetWindow(), &lastFocusMethod);
|
|
}
|
|
}
|
|
if (!(lastFocusMethod & nsIFocusManager::FLAG_BYMOUSE)) {
|
|
nsRefPtr<ScrollOnFocusEvent> event = new ScrollOnFocusEvent(this);
|
|
nsresult rv = NS_DispatchToCurrentThread(event);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
mScrollEvent = event;
|
|
}
|
|
}
|
|
}
|
|
|
|
// tell the caret to use our selection
|
|
caret->SetCaretDOMSelection(ourSel);
|
|
|
|
// mutual-exclusion: the selection is either controlled by the
|
|
// document or by the text input/area. Clear any selection in the
|
|
// document since the focus is now on our independent selection.
|
|
|
|
nsCOMPtr<nsISelectionController> selcon = do_QueryInterface(presShell);
|
|
nsCOMPtr<nsISelection> docSel;
|
|
selcon->GetSelection(nsISelectionController::SELECTION_NORMAL,
|
|
getter_AddRefs(docSel));
|
|
if (!docSel) return;
|
|
|
|
PRBool isCollapsed = PR_FALSE;
|
|
docSel->GetIsCollapsed(&isCollapsed);
|
|
if (!isCollapsed)
|
|
docSel->RemoveAllRanges();
|
|
}
|
|
|
|
nsresult nsTextControlFrame::SetFormProperty(nsIAtom* aName, const nsAString& aValue)
|
|
{
|
|
if (!mIsProcessing)//some kind of lock.
|
|
{
|
|
mIsProcessing = PR_TRUE;
|
|
if (nsGkAtoms::select == aName)
|
|
{
|
|
// Select all the text.
|
|
//
|
|
// XXX: This is lame, we can't call editor's SelectAll method
|
|
// because that triggers AutoCopies in unix builds.
|
|
// Instead, we have to call our own homegrown version
|
|
// of select all which merely builds a range that selects
|
|
// all of the content and adds that to the selection.
|
|
|
|
nsWeakFrame weakThis = this;
|
|
SelectAllOrCollapseToEndOfText(PR_TRUE); // NOTE: can destroy the world
|
|
if (!weakThis.IsAlive()) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
mIsProcessing = PR_FALSE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetFormProperty(nsIAtom* aName, nsAString& aValue) const
|
|
{
|
|
NS_ASSERTION(nsGkAtoms::value != aName,
|
|
"Should get the value from the content node instead");
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetEditor(nsIEditor **aEditor)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aEditor);
|
|
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
*aEditor = txtCtrl->GetTextEditor();
|
|
NS_IF_ADDREF(*aEditor);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetTextLength(PRInt32* aTextLength)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aTextLength);
|
|
|
|
nsAutoString textContents;
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
txtCtrl->GetTextEditorValue(textContents, PR_FALSE); // this is expensive!
|
|
*aTextLength = textContents.Length();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::SetSelectionInternal(nsIDOMNode *aStartNode,
|
|
PRInt32 aStartOffset,
|
|
nsIDOMNode *aEndNode,
|
|
PRInt32 aEndOffset,
|
|
nsITextControlFrame::SelectionDirection aDirection)
|
|
{
|
|
// Create a new range to represent the new selection.
|
|
// Note that we use a new range to avoid having to do
|
|
// isIncreasing checks to avoid possible errors.
|
|
|
|
nsCOMPtr<nsIDOMRange> range = do_CreateInstance(kRangeCID);
|
|
NS_ENSURE_TRUE(range, NS_ERROR_FAILURE);
|
|
|
|
nsresult rv = range->SetStart(aStartNode, aStartOffset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = range->SetEnd(aEndNode, aEndOffset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Get the selection, clear it and add the new range to it!
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
NS_ENSURE_TRUE(selCon, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsISelection> selection;
|
|
selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection));
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsISelectionPrivate> selPriv = do_QueryInterface(selection, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsDirection direction;
|
|
if (aDirection == eNone) {
|
|
// Preserve the direction
|
|
direction = selPriv->GetSelectionDirection();
|
|
} else {
|
|
direction = (aDirection == eBackward) ? eDirPrevious : eDirNext;
|
|
}
|
|
|
|
rv = selection->RemoveAllRanges();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = selection->AddRange(range); // NOTE: can destroy the world
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
selPriv->SetSelectionDirection(direction);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::ScrollSelectionIntoView()
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
if (selCon) {
|
|
// Scroll the selection into view (see bug 231389).
|
|
return selCon->ScrollSelectionIntoView(nsISelectionController::SELECTION_NORMAL,
|
|
nsISelectionController::SELECTION_FOCUS_REGION,
|
|
nsISelectionController::SCROLL_FIRST_ANCESTOR_ONLY);
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetRootNodeAndInitializeEditor(nsIDOMElement **aRootElement)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aRootElement);
|
|
|
|
nsCOMPtr<nsIEditor> editor;
|
|
GetEditor(getter_AddRefs(editor));
|
|
if (!editor)
|
|
return NS_OK;
|
|
|
|
return editor->GetRootElement(aRootElement);
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::SelectAllOrCollapseToEndOfText(PRBool aSelect)
|
|
{
|
|
nsCOMPtr<nsIDOMElement> rootElement;
|
|
nsresult rv = GetRootNodeAndInitializeEditor(getter_AddRefs(rootElement));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIContent> rootContent = do_QueryInterface(rootElement);
|
|
nsCOMPtr<nsIDOMNode> rootNode(do_QueryInterface(rootElement));
|
|
|
|
NS_ENSURE_TRUE(rootNode && rootContent, NS_ERROR_FAILURE);
|
|
|
|
PRInt32 numChildren = rootContent->GetChildCount();
|
|
|
|
if (numChildren > 0) {
|
|
// We never want to place the selection after the last
|
|
// br under the root node!
|
|
nsIContent *child = rootContent->GetChildAt(numChildren - 1);
|
|
if (child) {
|
|
if (child->Tag() == nsGkAtoms::br)
|
|
--numChildren;
|
|
}
|
|
if (!aSelect && numChildren) {
|
|
child = rootContent->GetChildAt(numChildren - 1);
|
|
if (child && child->IsNodeOfType(nsINode::eTEXT)) {
|
|
rootNode = do_QueryInterface(child);
|
|
const nsTextFragment* fragment = child->GetText();
|
|
numChildren = fragment ? fragment->GetLength() : 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
rv = SetSelectionInternal(rootNode, aSelect ? 0 : numChildren,
|
|
rootNode, numChildren);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return ScrollSelectionIntoView();
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::SetSelectionEndPoints(PRInt32 aSelStart, PRInt32 aSelEnd,
|
|
nsITextControlFrame::SelectionDirection aDirection)
|
|
{
|
|
NS_ASSERTION(aSelStart <= aSelEnd, "Invalid selection offsets!");
|
|
|
|
if (aSelStart > aSelEnd)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> startNode, endNode;
|
|
PRInt32 startOffset, endOffset;
|
|
|
|
// Calculate the selection start point.
|
|
|
|
nsresult rv = OffsetToDOMPoint(aSelStart, getter_AddRefs(startNode), &startOffset);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelStart == aSelEnd) {
|
|
// Collapsed selection, so start and end are the same!
|
|
endNode = startNode;
|
|
endOffset = startOffset;
|
|
}
|
|
else {
|
|
// Selection isn't collapsed so we have to calculate
|
|
// the end point too.
|
|
|
|
rv = OffsetToDOMPoint(aSelEnd, getter_AddRefs(endNode), &endOffset);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
return SetSelectionInternal(startNode, startOffset, endNode, endOffset, aDirection);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetSelectionRange(PRInt32 aSelStart, PRInt32 aSelEnd,
|
|
nsITextControlFrame::SelectionDirection aDirection)
|
|
{
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelStart > aSelEnd) {
|
|
// Simulate what we'd see SetSelectionStart() was called, followed
|
|
// by a SetSelectionEnd().
|
|
|
|
aSelStart = aSelEnd;
|
|
}
|
|
|
|
return SetSelectionEndPoints(aSelStart, aSelEnd, aDirection);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetSelectionStart(PRInt32 aSelectionStart)
|
|
{
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
PRInt32 selStart = 0, selEnd = 0;
|
|
|
|
rv = GetSelectionRange(&selStart, &selEnd);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelectionStart > selEnd) {
|
|
// Collapse to the new start point.
|
|
selEnd = aSelectionStart;
|
|
}
|
|
|
|
selStart = aSelectionStart;
|
|
|
|
return SetSelectionEndPoints(selStart, selEnd);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetSelectionEnd(PRInt32 aSelectionEnd)
|
|
{
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
PRInt32 selStart = 0, selEnd = 0;
|
|
|
|
rv = GetSelectionRange(&selStart, &selEnd);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelectionEnd < selStart) {
|
|
// Collapse to the new end point.
|
|
selStart = aSelectionEnd;
|
|
}
|
|
|
|
selEnd = aSelectionEnd;
|
|
|
|
return SetSelectionEndPoints(selStart, selEnd);
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::DOMPointToOffset(nsIDOMNode* aNode,
|
|
PRInt32 aNodeOffset,
|
|
PRInt32* aResult)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aNode && aResult);
|
|
|
|
*aResult = 0;
|
|
|
|
nsCOMPtr<nsIDOMElement> rootElement;
|
|
nsresult rv = GetRootNodeAndInitializeEditor(getter_AddRefs(rootElement));
|
|
nsCOMPtr<nsIDOMNode> rootNode(do_QueryInterface(rootElement));
|
|
|
|
NS_ENSURE_TRUE(rootNode, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsIDOMNodeList> nodeList;
|
|
|
|
rv = rootNode->GetChildNodes(getter_AddRefs(nodeList));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(nodeList, NS_ERROR_FAILURE);
|
|
|
|
PRUint32 length = 0;
|
|
rv = nodeList->GetLength(&length);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!length || aNodeOffset < 0)
|
|
return NS_OK;
|
|
|
|
NS_ASSERTION(length <= 2, "We should have one text node and one mozBR at most");
|
|
|
|
nsCOMPtr<nsIDOMNode> firstNode;
|
|
rv = nodeList->Item(0, getter_AddRefs(firstNode));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIDOMText> textNode = do_QueryInterface(firstNode);
|
|
|
|
nsCOMPtr<nsIDOMText> nodeAsText = do_QueryInterface(aNode);
|
|
if (nodeAsText || (aNode == rootNode && aNodeOffset == 0)) {
|
|
// Selection is somewhere inside the text node; the offset is aNodeOffset
|
|
*aResult = aNodeOffset;
|
|
} else {
|
|
// Selection is on the mozBR node, so offset should be set to the length
|
|
// of the text node.
|
|
if (textNode) {
|
|
rv = textNode->GetLength(&length);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
*aResult = PRInt32(length);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::OffsetToDOMPoint(PRInt32 aOffset,
|
|
nsIDOMNode** aResult,
|
|
PRInt32* aPosition)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aResult && aPosition);
|
|
|
|
*aResult = nsnull;
|
|
*aPosition = 0;
|
|
|
|
nsCOMPtr<nsIDOMElement> rootElement;
|
|
nsresult rv = GetRootNodeAndInitializeEditor(getter_AddRefs(rootElement));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIDOMNode> rootNode(do_QueryInterface(rootElement));
|
|
|
|
NS_ENSURE_TRUE(rootNode, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsIDOMNodeList> nodeList;
|
|
|
|
rv = rootNode->GetChildNodes(getter_AddRefs(nodeList));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(nodeList, NS_ERROR_FAILURE);
|
|
|
|
PRUint32 length = 0;
|
|
|
|
rv = nodeList->GetLength(&length);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
NS_ASSERTION(length <= 2, "We should have one text node and one mozBR at most");
|
|
|
|
nsCOMPtr<nsIDOMNode> firstNode;
|
|
rv = nodeList->Item(0, getter_AddRefs(firstNode));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIDOMText> textNode = do_QueryInterface(firstNode);
|
|
|
|
if (length == 0 || aOffset < 0) {
|
|
NS_IF_ADDREF(*aResult = rootNode);
|
|
*aPosition = 0;
|
|
} else if (textNode) {
|
|
PRUint32 textLength = 0;
|
|
textNode->GetLength(&textLength);
|
|
if (length == 2 && PRUint32(aOffset) == textLength) {
|
|
// If we're at the end of the text node and we have a trailing BR node,
|
|
// set the selection on the BR node.
|
|
NS_IF_ADDREF(*aResult = rootNode);
|
|
*aPosition = 1;
|
|
} else {
|
|
// Otherwise, set the selection on the textnode itself.
|
|
NS_IF_ADDREF(*aResult = firstNode);
|
|
*aPosition = NS_MIN(aOffset, PRInt32(textLength));
|
|
}
|
|
} else {
|
|
NS_IF_ADDREF(*aResult = rootNode);
|
|
*aPosition = 0;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetSelectionRange(PRInt32* aSelectionStart,
|
|
PRInt32* aSelectionEnd,
|
|
SelectionDirection* aDirection)
|
|
{
|
|
// make sure we have an editor
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelectionStart) {
|
|
*aSelectionStart = 0;
|
|
}
|
|
if (aSelectionEnd) {
|
|
*aSelectionEnd = 0;
|
|
}
|
|
if (aDirection) {
|
|
*aDirection = eNone;
|
|
}
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
NS_ENSURE_TRUE(selCon, NS_ERROR_FAILURE);
|
|
nsCOMPtr<nsISelection> selection;
|
|
rv = selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_FAILURE);
|
|
|
|
PRInt32 numRanges = 0;
|
|
selection->GetRangeCount(&numRanges);
|
|
|
|
if (numRanges < 1)
|
|
return NS_OK;
|
|
|
|
// We only operate on the first range in the selection!
|
|
|
|
if (aDirection) {
|
|
nsCOMPtr<nsISelectionPrivate> selPriv = do_QueryInterface(selection);
|
|
if (selPriv) {
|
|
nsDirection direction = selPriv->GetSelectionDirection();
|
|
if (direction == eDirNext) {
|
|
*aDirection = eForward;
|
|
} else if (direction == eDirPrevious) {
|
|
*aDirection = eBackward;
|
|
} else {
|
|
NS_NOTREACHED("Invalid nsDirection enum value");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!aSelectionStart || !aSelectionEnd) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMRange> firstRange;
|
|
rv = selection->GetRangeAt(0, getter_AddRefs(firstRange));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(firstRange, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsIDOMNode> startNode, endNode;
|
|
PRInt32 startOffset = 0, endOffset = 0;
|
|
|
|
// Get the start point of the range.
|
|
|
|
rv = firstRange->GetStartContainer(getter_AddRefs(startNode));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(startNode, NS_ERROR_FAILURE);
|
|
|
|
rv = firstRange->GetStartOffset(&startOffset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Get the end point of the range.
|
|
|
|
rv = firstRange->GetEndContainer(getter_AddRefs(endNode));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(endNode, NS_ERROR_FAILURE);
|
|
|
|
rv = firstRange->GetEndOffset(&endOffset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Convert the start point to a selection offset.
|
|
|
|
rv = DOMPointToOffset(startNode, startOffset, aSelectionStart);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Convert the end point to a selection offset.
|
|
|
|
return DOMPointToOffset(endNode, endOffset, aSelectionEnd);
|
|
}
|
|
|
|
/////END INTERFACE IMPLEMENTATIONS
|
|
|
|
////NSIFRAME
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::AttributeChanged(PRInt32 aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
PRInt32 aModType)
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
const PRBool needEditor = nsGkAtoms::maxlength == aAttribute ||
|
|
nsGkAtoms::readonly == aAttribute ||
|
|
nsGkAtoms::disabled == aAttribute ||
|
|
nsGkAtoms::spellcheck == aAttribute;
|
|
nsCOMPtr<nsIEditor> editor;
|
|
if (needEditor) {
|
|
GetEditor(getter_AddRefs(editor));
|
|
}
|
|
if ((needEditor && !editor) || !selCon)
|
|
return nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);;
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
if (nsGkAtoms::maxlength == aAttribute)
|
|
{
|
|
PRInt32 maxLength;
|
|
PRBool maxDefined = GetMaxLength(&maxLength);
|
|
|
|
nsCOMPtr<nsIPlaintextEditor> textEditor = do_QueryInterface(editor);
|
|
if (textEditor)
|
|
{
|
|
if (maxDefined)
|
|
{ // set the maxLength attribute
|
|
textEditor->SetMaxTextLength(maxLength);
|
|
// if maxLength>docLength, we need to truncate the doc content
|
|
}
|
|
else { // unset the maxLength attribute
|
|
textEditor->SetMaxTextLength(-1);
|
|
}
|
|
}
|
|
rv = NS_OK; // don't propagate the error
|
|
}
|
|
else if (nsGkAtoms::readonly == aAttribute)
|
|
{
|
|
PRUint32 flags;
|
|
editor->GetFlags(&flags);
|
|
if (AttributeExists(nsGkAtoms::readonly))
|
|
{ // set readonly
|
|
flags |= nsIPlaintextEditor::eEditorReadonlyMask;
|
|
if (nsContentUtils::IsFocusedContent(mContent))
|
|
selCon->SetCaretEnabled(PR_FALSE);
|
|
}
|
|
else
|
|
{ // unset readonly
|
|
flags &= ~(nsIPlaintextEditor::eEditorReadonlyMask);
|
|
if (!(flags & nsIPlaintextEditor::eEditorDisabledMask) &&
|
|
nsContentUtils::IsFocusedContent(mContent))
|
|
selCon->SetCaretEnabled(PR_TRUE);
|
|
}
|
|
editor->SetFlags(flags);
|
|
}
|
|
else if (nsGkAtoms::disabled == aAttribute)
|
|
{
|
|
PRUint32 flags;
|
|
editor->GetFlags(&flags);
|
|
if (AttributeExists(nsGkAtoms::disabled))
|
|
{ // set disabled
|
|
flags |= nsIPlaintextEditor::eEditorDisabledMask;
|
|
selCon->SetDisplaySelection(nsISelectionController::SELECTION_OFF);
|
|
if (nsContentUtils::IsFocusedContent(mContent))
|
|
selCon->SetCaretEnabled(PR_FALSE);
|
|
}
|
|
else
|
|
{ // unset disabled
|
|
flags &= ~(nsIPlaintextEditor::eEditorDisabledMask);
|
|
selCon->SetDisplaySelection(nsISelectionController::SELECTION_HIDDEN);
|
|
if (nsContentUtils::IsFocusedContent(mContent)) {
|
|
selCon->SetCaretEnabled(PR_TRUE);
|
|
}
|
|
}
|
|
editor->SetFlags(flags);
|
|
}
|
|
else if (!mUseEditor && nsGkAtoms::value == aAttribute) {
|
|
UpdateValueDisplay(PR_TRUE);
|
|
}
|
|
// Allow the base class to handle common attributes supported
|
|
// by all form elements...
|
|
else {
|
|
rv = nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetText(nsString& aText)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
if (IsSingleLineTextControl()) {
|
|
// There will be no line breaks so we can ignore the wrap property.
|
|
txtCtrl->GetTextEditorValue(aText, PR_TRUE);
|
|
} else {
|
|
nsCOMPtr<nsIDOMHTMLTextAreaElement> textArea = do_QueryInterface(mContent);
|
|
if (textArea) {
|
|
rv = textArea->GetValue(aText);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetPhonetic(nsAString& aPhonetic)
|
|
{
|
|
aPhonetic.Truncate(0);
|
|
|
|
nsCOMPtr<nsIEditor> editor;
|
|
nsresult rv = GetEditor(getter_AddRefs(editor));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIEditorIMESupport> imeSupport = do_QueryInterface(editor);
|
|
if (imeSupport) {
|
|
nsCOMPtr<nsIPhonetic> phonetic = do_QueryInterface(imeSupport);
|
|
if (phonetic)
|
|
phonetic->GetPhonetic(aPhonetic);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
///END NSIFRAME OVERLOADS
|
|
/////BEGIN PROTECTED METHODS
|
|
|
|
PRBool
|
|
nsTextControlFrame::GetMaxLength(PRInt32* aSize)
|
|
{
|
|
*aSize = -1;
|
|
|
|
nsGenericHTMLElement *content = nsGenericHTMLElement::FromContent(mContent);
|
|
if (content) {
|
|
const nsAttrValue* attr = content->GetParsedAttr(nsGkAtoms::maxlength);
|
|
if (attr && attr->Type() == nsAttrValue::eInteger) {
|
|
*aSize = attr->GetIntegerValue();
|
|
|
|
return PR_TRUE;
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// this is where we propagate a content changed event
|
|
void
|
|
nsTextControlFrame::FireOnInput(PRBool aTrusted)
|
|
{
|
|
if (!mNotifyOnInput)
|
|
return; // if notification is turned off, do nothing
|
|
|
|
// Dispatch the "input" event
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
nsUIEvent event(aTrusted, NS_FORM_INPUT, 0);
|
|
|
|
// Have the content handle the event, propagating it according to normal
|
|
// DOM rules.
|
|
nsCOMPtr<nsIPresShell> shell = PresContext()->PresShell();
|
|
shell->HandleEventWithTarget(&event, nsnull, mContent, &status);
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::InitFocusedValue()
|
|
{
|
|
return GetText(mFocusedValue);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::CheckFireOnChange()
|
|
{
|
|
nsString value;
|
|
GetText(value);
|
|
if (!mFocusedValue.Equals(value))
|
|
{
|
|
mFocusedValue = value;
|
|
// Dispatch the change event.
|
|
nsContentUtils::DispatchTrustedEvent(mContent->GetOwnerDoc(), mContent,
|
|
NS_LITERAL_STRING("change"), PR_TRUE,
|
|
PR_FALSE);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// END IMPLEMENTING NS_IFORMCONTROLFRAME
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetInitialChildList(nsIAtom* aListName,
|
|
nsFrameList& aChildList)
|
|
{
|
|
nsresult rv = nsBoxFrame::SetInitialChildList(aListName, aChildList);
|
|
|
|
nsIFrame* first = GetFirstChild(nsnull);
|
|
|
|
// Mark the scroll frame as being a reflow root. This will allow
|
|
// incremental reflows to be initiated at the scroll frame, rather
|
|
// than descending from the root frame of the frame hierarchy.
|
|
if (first) {
|
|
first->AddStateBits(NS_FRAME_REFLOW_ROOT);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
txtCtrl->InitializeKeyboardEventListeners();
|
|
|
|
nsPoint* contentScrollPos = static_cast<nsPoint*>
|
|
(Properties().Get(ContentScrollPos()));
|
|
if (contentScrollPos) {
|
|
// If we have a scroll pos stored to be passed to our anonymous
|
|
// div, do it here!
|
|
nsIStatefulFrame* statefulFrame = do_QueryFrame(first);
|
|
NS_ASSERTION(statefulFrame, "unexpected type of frame for the anonymous div");
|
|
nsPresState fakePresState;
|
|
fakePresState.SetScrollState(*contentScrollPos);
|
|
statefulFrame->RestoreState(&fakePresState);
|
|
Properties().Remove(ContentScrollPos());
|
|
delete contentScrollPos;
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
PRBool
|
|
nsTextControlFrame::IsScrollable() const
|
|
{
|
|
return !IsSingleLineTextControl();
|
|
}
|
|
|
|
void
|
|
nsTextControlFrame::SetValueChanged(PRBool aValueChanged)
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
if (mUsePlaceholder && !nsContentUtils::IsFocusedContent(mContent)) {
|
|
// If the content is focused, we don't care about the changes because
|
|
// the placeholder is going to be hidden/shown on blur.
|
|
PRInt32 textLength;
|
|
GetTextLength(&textLength);
|
|
|
|
nsWeakFrame weakFrame(this);
|
|
txtCtrl->SetPlaceholderClass(!textLength, PR_TRUE);
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
txtCtrl->SetValueChanged(aValueChanged);
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextControlFrame::UpdateValueDisplay(PRBool aNotify,
|
|
PRBool aBeforeEditorInit,
|
|
const nsAString *aValue)
|
|
{
|
|
if (!IsSingleLineTextControl()) // textareas don't use this
|
|
return NS_OK;
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsIContent* rootNode = txtCtrl->GetRootEditorNode();
|
|
|
|
NS_PRECONDITION(rootNode, "Must have a div content\n");
|
|
NS_PRECONDITION(!mUseEditor,
|
|
"Do not call this after editor has been initialized");
|
|
NS_ASSERTION(!mUsePlaceholder || txtCtrl->GetPlaceholderNode(),
|
|
"A placeholder div must exist");
|
|
|
|
nsIContent *textContent = rootNode->GetChildAt(0);
|
|
if (!textContent) {
|
|
// Set up a textnode with our value
|
|
nsCOMPtr<nsIContent> textNode;
|
|
nsresult rv = NS_NewTextNode(getter_AddRefs(textNode),
|
|
mContent->NodeInfo()->NodeInfoManager());
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
NS_ASSERTION(textNode, "Must have textcontent!\n");
|
|
|
|
rootNode->AppendChildTo(textNode, aNotify);
|
|
textContent = textNode;
|
|
}
|
|
|
|
NS_ENSURE_TRUE(textContent, NS_ERROR_UNEXPECTED);
|
|
|
|
// Get the current value of the textfield from the content.
|
|
nsAutoString value;
|
|
if (aValue) {
|
|
value = *aValue;
|
|
} else {
|
|
txtCtrl->GetTextEditorValue(value, PR_TRUE);
|
|
}
|
|
|
|
// Update the display of the placeholder value if needed.
|
|
// We don't need to do this if we're about to initialize the
|
|
// editor, since EnsureEditorInitialized takes care of this.
|
|
if (mUsePlaceholder && !aBeforeEditorInit)
|
|
{
|
|
nsWeakFrame weakFrame(this);
|
|
txtCtrl->SetPlaceholderClass(value.IsEmpty(), aNotify);
|
|
NS_ENSURE_STATE(weakFrame.IsAlive());
|
|
}
|
|
|
|
if (aBeforeEditorInit && value.IsEmpty()) {
|
|
rootNode->RemoveChildAt(0, PR_TRUE);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!value.IsEmpty() && IsPasswordTextControl()) {
|
|
nsTextEditRules::FillBufWithPWChars(&value, value.Length());
|
|
}
|
|
return textContent->SetText(value, aNotify);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetOwnedSelectionController(nsISelectionController** aSelCon)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aSelCon);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
*aSelCon = txtCtrl->GetSelectionController();
|
|
NS_IF_ADDREF(*aSelCon);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsFrameSelection*
|
|
nsTextControlFrame::GetOwnedFrameSelection()
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
return txtCtrl->GetConstFrameSelection();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SaveState(nsIStatefulFrame::SpecialStateID aStateID, nsPresState** aState)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aState);
|
|
|
|
*aState = nsnull;
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
nsIContent* rootNode = txtCtrl->GetRootEditorNode();
|
|
if (rootNode) {
|
|
// Query the nsIStatefulFrame from the HTMLScrollFrame
|
|
nsIStatefulFrame* scrollStateFrame = do_QueryFrame(rootNode->GetPrimaryFrame());
|
|
if (scrollStateFrame) {
|
|
return scrollStateFrame->SaveState(aStateID, aState);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::RestoreState(nsPresState* aState)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aState);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
nsIContent* rootNode = txtCtrl->GetRootEditorNode();
|
|
if (rootNode) {
|
|
// Query the nsIStatefulFrame from the HTMLScrollFrame
|
|
nsIStatefulFrame* scrollStateFrame = do_QueryFrame(rootNode->GetPrimaryFrame());
|
|
if (scrollStateFrame) {
|
|
return scrollStateFrame->RestoreState(aState);
|
|
}
|
|
}
|
|
|
|
// Most likely, we don't have our anonymous content constructed yet, which
|
|
// would cause us to end up here. In this case, we'll just store the scroll
|
|
// pos ourselves, and forward it to the scroll frame later when it's created.
|
|
Properties().Set(ContentScrollPos(), new nsPoint(aState->GetScrollState()));
|
|
return NS_OK;
|
|
}
|
|
|